When to plant mizuna in Minnesota
Minnesota spans USDA zones 3b–5a, so the right time to plant mizuna shifts by weeks across the state. The window to sow seed directly outdoors runs from about March 24 in Winona to May 8 in Hibbing — below are local dates for 102 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Minneapolis | 5a | April 23 | October 16 | March 26 – May 7 |
| St. Paul | 5a | April 24 | October 16 | March 27 – May 8 |
| Rochester | 4b | April 30 | October 6 | April 2 – May 14 |
| Bloomington | 5a | April 23 | October 18 | March 26 – May 7 |
| Duluth | 4b | May 14 | October 12 | April 16 – May 28 |
| Brooklyn Park | 5a | April 30 | October 8 | April 2 – May 14 |
| Plymouth | 5a | April 29 | October 12 | April 1 – May 13 |
| Woodbury | 5a | April 26 | October 12 | March 29 – May 10 |
Mizuna in Minnesota: FAQ
When can I plant mizuna in Minnesota?
Across Minnesota, the time to direct-sow mizuna spans roughly March 24 in Winona to May 8 in Hibbing, each following that city's local frost dates.
Does the mizuna planting date vary across Minnesota?
Yes. Minnesota publishes 102 cities with their own frost dates, so the right mizuna planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
How long does mizuna take to grow in Minnesota?
Mizuna takes about 40–50 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
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